Jessica runs a shop that rents canoes and bicycles. Last week, she rented canoes and bicycles for a total of 140 hours. The rental cost for each canoe is $24 per hour, and the rental cost for each bicylce is $8 per hour. Jessica earned a total of $1632 last week from renting canoes for x hours and bicycles for y hours. Write two equations in terms of x and y Jessica could use to determine how many total hours she rented canoes.